Small portable air compressor for ink pens



FIG. 1 is a perspective view of a small portable air compressor for ink pens;

FIG. 2 is a front view thereof;

FIG. 3 is a back view thereof;

FIG. 4 is a left side view thereof;

FIG. 5 is a right side view thereof;

FIG. 6 is a top view thereof;

FIG. 7 is a bottom view thereof; and,

FIG. 8 is an embodiment view thereof.

It being understood that the broken lines are for illustrative purposes only and form no part of the claimed design. 

The ornamental design for a small portable air compressor for ink pens, as shown and described. 